Home / 3,828.39-5,280.78-2,502.06

Finding the Fourth Proportional to 3,828.39, 5,280.78 and 2,502.06

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Solution

The fourth proportional to 3,828.39, 5,280.78 and 2,502.06 is: 3,451.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,828.39 : 5,280.78 = 2,502.06 : x
  2. Step 2: Convert to fraction form
    3,828.39/5,280.78 = 2,502.06/x
  3. Step 3: Cross multiply
    3,828.39x = 5,280.78 × 2,502.06
  4. Step 4: Simplify right side
    3,828.39x = 13,212,828.41
  5. Step 5: Solve for x
    x = 13,212,828.41/3,828.39
  6. Step 6: Final answer
    x = 3,451.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.